syzkaller-repros/linux/3c525eb32f20839275e11b8935ad6f72d0041141.c

// possible deadlock in strp_sock_lock
// https://syzkaller.appspot.com/bug?id=3c525eb32f20839275e11b8935ad6f72d0041141
// status:open
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  intptr_t res = 0;
  res = syscall(__NR_socket, 2, 1, 0);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x20e5b000 = 2;
  *(uint16_t*)0x20e5b002 = htobe16(0x4e20);
  *(uint32_t*)0x20e5b004 = htobe32(0xe0000001);
  syscall(__NR_bind, r[0], 0x20e5b000, 0x10);
  *(uint16_t*)0x20ccb000 = 2;
  *(uint16_t*)0x20ccb002 = htobe16(0x4e20);
  *(uint32_t*)0x20ccb004 = htobe32(0);
  syscall(__NR_connect, r[0], 0x20ccb000, 0x10);
  *(uint32_t*)0x20eb0fb8 = 1;
  *(uint32_t*)0x20eb0fbc = 3;
  *(uint64_t*)0x20eb0fc0 = 0x209ff000;
  *(uint8_t*)0x209ff000 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x209ff001, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x209ff001, 0, 4, 4);
  *(uint16_t*)0x209ff002 = 0;
  *(uint32_t*)0x209ff004 = 0;
  *(uint8_t*)0x209ff008 = 0;
  *(uint8_t*)0x209ff009 = 0;
  *(uint16_t*)0x209ff00a = 0;
  *(uint32_t*)0x209ff00c = 0;
  *(uint8_t*)0x209ff010 = 0x95;
  *(uint8_t*)0x209ff011 = 0;
  *(uint16_t*)0x209ff012 = 0;
  *(uint32_t*)0x209ff014 = 0;
  *(uint64_t*)0x20eb0fc8 = 0x20000000;
  memcpy((void*)0x20000000, "syzkaller\000", 10);
  *(uint32_t*)0x20eb0fd0 = 4;
  *(uint32_t*)0x20eb0fd4 = 0xb7;
  *(uint64_t*)0x20eb0fd8 = 0x206ab000;
  *(uint32_t*)0x20eb0fe0 = 0;
  *(uint32_t*)0x20eb0fe4 = 0;
  *(uint8_t*)0x20eb0fe8 = 0;
  *(uint8_t*)0x20eb0fe9 = 0;
  *(uint8_t*)0x20eb0fea = 0;
  *(uint8_t*)0x20eb0feb = 0;
  *(uint8_t*)0x20eb0fec = 0;
  *(uint8_t*)0x20eb0fed = 0;
  *(uint8_t*)0x20eb0fee = 0;
  *(uint8_t*)0x20eb0fef = 0;
  *(uint8_t*)0x20eb0ff0 = 0;
  *(uint8_t*)0x20eb0ff1 = 0;
  *(uint8_t*)0x20eb0ff2 = 0;
  *(uint8_t*)0x20eb0ff3 = 0;
  *(uint8_t*)0x20eb0ff4 = 0;
  *(uint8_t*)0x20eb0ff5 = 0;
  *(uint8_t*)0x20eb0ff6 = 0;
  *(uint8_t*)0x20eb0ff7 = 0;
  *(uint32_t*)0x20eb0ff8 = 0;
  *(uint32_t*)0x20eb0ffc = 0;
  *(uint32_t*)0x20eb1000 = -1;
  *(uint32_t*)0x20eb1004 = 8;
  *(uint64_t*)0x20eb1008 = 0x20000000;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20eb1010 = 0;
  *(uint32_t*)0x20eb1014 = 0x10;
  *(uint64_t*)0x20eb1018 = 0x20000000;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint32_t*)0x2000000c = 0;
  *(uint32_t*)0x20eb1020 = 0;
  res = syscall(__NR_bpf, 5, 0x20eb0fb8, 0x48);
  if (res != -1)
    r[1] = res;
  res = syscall(__NR_socket, 0x29, 0x1000000000000005, 0);
  if (res != -1)
    r[2] = res;
  *(uint32_t*)0x2031aff8 = r[0];
  *(uint32_t*)0x2031affc = r[1];
  syscall(__NR_ioctl, r[2], 0x89e0, 0x2031aff8);
  *(uint32_t*)0x20000080 = r[0];
  *(uint32_t*)0x20000084 = r[1];
  syscall(__NR_ioctl, r[2], 0x89e0, 0x20000080);
  return 0;
}